There are few scripts in my test lab which I am using while running
tests. While most of them are very specific, there is one which may be
of interest for you. This script allows you to verify if any CPU core is shared between two or more logical domains. читать дальше...

I've being waiting for this update to try deduplication of zfs. Being
knowing that a lot of files will be written as result of image update I
set zfs compression
including rpool file system (except swap and dump) before doing update.
Zfs compression on my home files already being for one month and proved
to save space/time/power. читать дальше...